Mill (grinding) - Wikipedia
A mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting. Such comminution is an important unit operation in many processes.There are many different types of mills and many types of materials processed in them. Historically mills were powered by hand or by animals (e.g., via a hand crank), working animal (e.g., horse mill), wind or water ().gulin mining south africa - Joy For Life,Gulin mining south africa.And they are mainly used to crush coarse minerals like gold and copper ore, metals like steel and iron, glass, coal, asphalt, gravel, concrete, etc.With more than 2,500 case sites, the scientific management method, the refined manufacturing process, and the innovative manufacturing concept,have rapidly grown into. Read,Ball mill for gold mining Manufacturers & Suppliers, China,,ball mill for gold mining manufacturer/supplier, China ball mill for gold mining manufacturer & factory list, find qualified Chinese ball mill for gold mining manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.